+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   34786 (2001 RS87) Classification: Main-belt Asteroid          SPK-ID: 2034786 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09915189164027782 4.2022e-08   a 2.937962960950023 1.7232e-08 au q 2.646658375802756 1.3166e-07 au i .9783444522598939 4.0296e-06 deg node 292.8351356101453 0.00029039 deg peri 15.42745294452328 0.00029149 deg M 23.28607893636277 2.5052e-05 deg tp 2459277.523341926005 (2021-Mar-04.02334193) 0.00012787 TDB period 1839.364928019452 5.04 1.6183e-05 4.431e-08 d yr n .195719726148977 1.722e-09 deg/d Q 3.229267546097289 1.8941e-08 au   Orbit Determination Parameters    # obs. used (total)      1109      data-arc span      10891 days (29.82 yr)      first obs. used      1991-09-12      last obs. used      2021-07-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51428      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 14:14:51   Additional Information  Earth MOID = 1.63136 au   Jupiter MOID = 1.98029 au   T_jup = 3.266  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.28   n/a E2021B10   diameter diameter 4.286 km 0.660 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.183   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   34786 (2001 RS87)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa Reference: 20020128/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2001 RS87 = 1996 TT  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-28 21:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin